U.S. President Donald Trump and French President Emmanuel Macron size each other up before a lunch ahead of a NATO Summit in Brussels, Belgium. Jonathan Ernst (Reuters) President Donald Trump has had face time with dozens of world leaders since he moved into the White House on the heels of a shocking November election victory.

Trump's rhetorical bombast and politically unconventional behavior has, at points, delighted his base while leaving others less enthused at best, and calling for his impeachment at worst.

An ever-growing investigation of Russia's meddling in the election and possible collusion with the Trump campaign has, and continues, to add a complex layer to the Trump administration, coloring his interactions with leaders in the US and abroad.

Despite this, Trump has sat down with close to three dozen world leaders since he took office.

Here's who they are, and how the meetings went.

1/

Israeli Prime Minister Benjamin Netanyahu

AP Photo/Sebastian Scheiner

Netanyahu and Trump's meeting was focused in part on solving the the Israeli-Palestinian conflicts. Trump had said he could live with either solution, calling Netanyahu a " good negotiator," at a joint press conference.

Netanyahu replied, "It's the art of the deal," an apparent reference to Trump's 1987 book.

2/

German Chancellor Angela Merkel

REUTERS/Jonathan Ernst

Trump and Merkel's first meeting was one of the US president's most-anticipated interactions with a world leader — partly because of his campaign rhetoric that painted Germany in a negative light due to its willingness to accept refugees from war-torn countries in the Middle East.

Russian President Vladimir Putin

AP

President Trump and Putin were scheduled to have a half-hour meeting, but ended up speaking for over two hours. None of the White House pool reporters were allowed to attend, and Russian media and the White House accounts of the talks varied significantly.

Japanese Prime Minister Shinzo Abe

Prime Minister Justin Trudeau of Canada

REUTERS/Kevin Lamarque

Trudeau was the first world leader to beat Trump at his own handshake game. Trump is known to aggressively pull his handshake partner toward himself. An informational video by the Guardian broke down how Trudeau overcame that — by bracing himself with an arm extended to Trump's right shoulder.

9/

Turkish President Recep Tayyip Erdoğan

Evan Vucci/AP

While Erdoğan visited President Trump in May, his personal guard attacked protesters on US soil during a demonstration in front of the Turkish Embassy in Washington, DC. Multiple members of Congress decried the Turkish security detail's actions.

10/

Mexican President Enrique Peña Nieto

Henry Romero/REUTERS

Trump and Mexican President Enrique Peña Nieto's relationship has been tense ever since Trump proposed a wall along the US-Mexico border. Trump has repeatedly asserted that Mexico would pay for the wall, and Peña Nieto has rejected the idea. Trump's proposed budget seeks financial backing for the wall that the president insists Mexico would reimburse.

Indonesian President Joko Widodo

Trump and President Joko Widodo of Indonesia had a sideline meeting at the G-20 summit, where they agreed on trade policy between their countries, according to readout from the White House.

12/

Palestinian Authority President Mahmoud Abbas

REUTERS/Mohamad Torokman

Trump told Mahmoud Abbas "there's a very, very good chance" of peace between Israel and Palestine, and that he'd "love to be a mediator, an arbitrator or a facilitator" between the two, the Associated Press reported. Trump reportedly said he would "do whatever is necessary" to reach peace.

13/

Pope Francis, 266th pope of the Roman Catholic Church

L’Osservatore Romano/Pool Photo via AP

Pope Francis during his meeting with Trump gifted the president a copy of his 2015 encyclical calling for climate change action. Many saw the gift as a political move given Trump's and the Pope's differing stances on the environment.

14/

Croatian President Kolinda Grabar-Kitarovic

Trump and Croatian President Kolinda Grabar-Kitarovic reportedly discussed deepening US-Croatian ties, stability and security in the western Balkans and energy security and diversification, according to a White House readout of the meeting.

15/

Singapore Prime Minister Lee Hsien Loong

Trump met Singapore's Prime Minister Lee Hsien Loong at the G-20 summit in Germany. The two agreed to work together to uphold and strengthen their bilateral ties, according to the Prime Minister's Office.

Afterward, however, Trump aides misnamed Loong in a photo of the two on Instagram, referring to him as the Indonesian president instead. Internet commenters caught the mistake. The caption was changed.

Israeli President Reuven Rivlin

During his meeting with Israeli President Reuven Rivlin, Trump reaffirmed promises for Israeli security. Rivlin showed Trump a tree that was planted in the Presidential Residence's garden in honor of his visit.

Afghan President Ashraf Ghani

Trump reportedly commended Afghanistan's President Ashraf Ghani during their on his and his soldiers' efforts to fight terrorism.

20/

President Abdel Fattah Al Sisi of Egypt

President Donald Trump greets Egyptian President Abdel Fattah Al-Sisi as he arrives at the White House, Monday, April 3, 2017, in Washington.AP Photo/Andrew Harnik

President Trump reportedly "love[d]" President Abdel Fattah Al Sisi's shoes when they met. Trump promised to visit Cairo soon, and Al Sisi called Trump, through a translator "a unique personality that is capable of doing the impossible."

21/

Colombian President Juan Manuel Santos

REUTERS/Yuri Gripas

Colombian President Juan Manuel Santos sought continued US aid for his country when he met President Trump in May. Trump commended Santos on his effort to end Colombia's 52-year conflict, which has left more than 220,000 dead. Trump said Santos' moves were a "great thing to watch," NBC News reported.

Australian Prime Minister Malcolm Turnbull

Jonathan Ernst/Reuters

Turnbull flew halfway across the world to see President Trump for just a half-hour meeting, after Trump pushed the meeting back three hours. Business Insider Australia reported the meeting was an attempt to repair their relationship, which was tense following their awkward phone call in the early days of Trump's presidency.

24/

Argentinian President Mauricio Macri

AP Photo/Evan Vucci

President Trump and President Mauricio Macri reportedly discussed ways to deepen the close partnership between the United States and Argentina, according to a joint statement from the two leaders. They also raised concerns over the conflict in Venezuela, and pledged to fight narcotics trafficking.

25/

Danish Prime Minister Lars Lokke Rasmussen

According to Danish news sources, President Trump and Danish Prime Minister Lars Lokke Rasmussen had a positive meeting with good chemistry. The two talked about strengthening NATO, saying Trump pushed Rasmussen to contribute more to the NATO fund, according to a joint readout from the White House.

26/

Iraqi Prime Minister Haider al-Abadi

REUTERS/Kevin Lamarque

According to Iraqi Prime Minister Haider al-Abadi, Trump promised to support Iraq in its fight against ISIS. Trump reportedly said the US never should have taken troops out of the country, Al Jazeera reported.

27/

Taoiseach Enda Kenny of Ireland

The Irish Taoiseach Enda Kenny used his St. Patrick's Day visit to lecture President Trump through a speech about immigration. The visit came while Trump's second travel ban was facing the courts, though Kenny did not directly mention the travel ban. Kenny reminded Trump that St. Patrick himself was an immigrant.

"There are millions out there who want to play their part for America — if you like, who want to make America great," Kenny said, referencing Trump's campaign slogan.

28/

President Pedro Pablo Kuczynski of Peru

Peruvian President Pedro Pablo Kuczynski reportedly referenced Trump's border wall proposal during their talks, telling Trump he preferred "bridges" over "walls," and favors the free movement of people across borders. However, he did not speak specifically about Trump's proposed US-Mexico border wall with the president.

29/

King Abdullah II of Jordan

President Trump promised financial aid to Jordan when meeting with King Abdullah, acknowledging the country's efforts to aid Syrian refugees. The meeting came just after a chemical attack by Bashar al-Assad on his own civilians, which both leaders denounced.

The two are united against fighting ISIS, but divided on the issue of hosting refugees, whom King Abdullah has opened Jordan to, CNN reported.

30/

Lebanese Prime Minister Saad Hariri

President Trump praised Lebanese Prime Minister Hariri for taking in Syrian refugees during their meeting at the White House. However the Trump administration has been working to temporarily bar Syrian refugees from the US via his travel ban.